Why do we feel insulted or exasperated when our friends and family don’t answer their mobile phones? If the Internet has allowed us to broaden our social world into a virtual friend-net, the mobile phone is an instrument of a more intimate social sphere. The mobile phone provides a taken-for-granted link to the people to whom we are closest; when we are without it, social and domestic disarray may result. In just a few years, the mobile phone has become central to the functioning of society.

Our workdays are so filled with emails, instant messaging, and RSS feeds that we complain that there’s not enough time to get our actual work done. At home, we are besieged by telephone calls on landlines and cell phones, the beeps that signal text messages, and work emails on our BlackBerrys. It’s too much, we cry (or type) as we update our Facebook pages, compose a blog post, or check to see what Shaquille O’Neal has to say on Twitter. In Texture, Richard Harper asks why we seek out new ways of communicating even as we complain about communication overload.

To philosophize is to communicate philosophically. From its inception, philosophy has communicated forcefully. Socrates, Plato, and Aristotle talk a lot, and talk ardently. Because philosophy and communication have belonged together from the beginning--and because philosophy comes into its own and solidifies its stance through communication--it is logical that we subject communication to philosophical investigation. This collection of key works of classical, modern, and contemporary philosophers brings communication back into philosophy’s orbit.

The message of this book is simple: the mobile phone strengthens social bonds among family and friends. With a traditional land-line telephone, we place calls to a location and ask hopefully if someone is “there”; with a mobile phone, we have instant and perpetual access to friends and family regardless of where they are. But when we are engaged in these intimate conversations with absent friends, what happens to our relationship with the people who are actually in the same room with us?

How can you know when someone is bluffing? Paying attention? Genuinely interested? The answer, writes Alex Pentland in Honest Signals, is that subtle patterns in how we interact with other people reveal our attitudes toward them. These unconscious social signals are not just a back channel or a complement to our conscious language; they form a separate communication network. Biologically based “honest signaling,” evolved from ancient primate signaling mechanisms, offers an unmatched window into our intentions, goals, and values.

In an age of proliferating media and news sources, who has the power to define reality? When the dominant media declared the existence of WMDs in Iraq, did that make it a fact? Today, the "social web" (sometimes known as Web 2.0, groupware, or the participatory Web)—epitomized by blogs, viral videos, and YouTube—creates new pathways for truths to emerge and makes possible new tactics for media activism.

How do pervasive digital devices--smartphones, iPods, GPS navigation systems, and cameras, among others--influence the way we use spaces? In The Tuning of Place, Richard Coyne argues that these ubiquitous devices and the networks that support them become the means of making incremental adjustments within spaces--of tuning place. Pervasive media help us formulate a sense of place, writes Coyne, through their capacity to introduce small changes, in the same way that tuning a musical instrument invokes the subtle process of recalibration.

Children and teens today have integrated digital culture seamlessly into their lives. For most, using the Internet, playing videogames, downloading music onto an iPod, or multitasking with a cell phone is no more complicated than setting the toaster oven to "bake" or turning on the TV. In Generation Digital, media expert and activist Kathryn C.

The idea of the “digital divide,” the great social division between information haves and have-nots, has dominated policy debates and scholarly analysis since the 1990s. In Working-Class Network Society, Jack Linchuan Qiu describes a more complex social and technological reality in a newly mobile, urbanizing China.

In recent decades we have witnessed the creation of a communication system that promises unparalleled connectedness. And yet the optimistic dreams of Internet-enabled engagement and empowerment have faded in the face of widespread Internet commercialization. In Liberating Voices, Douglas Schuler urges us to unleash our collective creativity--social as well as technological--and develop the communication systems that are truly needed.